CN102294804A - Mold locking mechanism of plastic injection molding machine - Google Patents
Mold locking mechanism of plastic injection molding machine Download PDFInfo
- Publication number
- CN102294804A CN102294804A CN2011102503425A CN201110250342A CN102294804A CN 102294804 A CN102294804 A CN 102294804A CN 2011102503425 A CN2011102503425 A CN 2011102503425A CN 201110250342 A CN201110250342 A CN 201110250342A CN 102294804 A CN102294804 A CN 102294804A
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- connecting rod
- rod
- thrust bearing
- oil cylinder
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Abstract
The invention discloses a mold locking mechanism of a plastic injection molding machine, comprising a base, a thrust seat, a moving mold plate and a fixed mold plate which are arranged in sequence, wherein the centers of the base, the thrust seat, the moving mold plate and the fixed mold plate are positioned on the same central axis; a guide rod is fixedly arranged on the base; the thrust seat and the moving mold plate are sheathed on the guide rod; the fixed mold plate is fixedly connected with the end part of the guide rod; and a connecting rod group is arranged between the moving mold plate and the base. The mold locking mechanism is characterized in that the thrust seat is internally and fixedly provided with at least one oil cylinder; and a piston rod of the oil cylinder is fixedly connected with the moving mold plate. The mold locking mechanism has the advantages that the length of the whole mold locking mechanism is reduced, the structure of the whole mechanism becomes compact, and the whole volume is reduced; and when the moving mold plate and the fixed mold plate are positioned in a locking state, the included angle of the center connecting line of a first connecting rod and a second connecting rod and the horizontal surface of the central axis is more than 0 degree but less than or equal to 10 degrees. In the structure, the acting force of the mold locking mechanism on the mold tends to the center of the mold, the stressing of the mold is more concentrated, and the qualification rate of plastic products is effectively improved.
Description
Technical field
The present invention relates to a kind of plastic-injection moulding machine, relate in particular to a kind of clamping mechanism of plastic-injection moulding machine.
Background technology
Plastic products in the market all are by the injection (mo(u)lding) machine injection mo(u)lding basically.In the operation process of injection (mo(u)lding) machine, the pressure when injecting in-mold molding owing to plastics is very high, may make mold open, so all be provided with clamping mechanism on the injection (mo(u)lding) machine.
Clamping mechanism all is made up of parts such as base, fixed form, collapsible form, thrust bearing, oil cylinder and link assemblies basically.And much be the outside that oil cylinder is fixedly mounted on base in the present clamping mechanism, caused the length of whole clamping mechanism longer; The clamping mechanism that also has is to adopt two oil cylinders, and is installed in the both sides of thrust bearing respectively, but no matter is above which kind of structure, and the overall volume of its clamping mechanism is all bigger, causes floor space big.
Summary of the invention
Technical problem to be solved by this invention provides a kind of compact conformation, can dwindle the clamping mechanism of the plastic-injection moulding machine of overall volume.
The present invention solves the problems of the technologies described above the technical scheme that is adopted: a kind of clamping mechanism of plastic-injection moulding machine; comprise and being arranged in order and it is centered close to base on the same central axis; thrust bearing; moving die plate and fixed form; be set with guide rod on the described base; described thrust bearing and moving die plate are set on the described guide rod; described fixed form is fixedly connected on the end of described guide rod; be provided with connection rod set between described moving die plate and the described base; the internal fixation of described thrust bearing is provided with at least one oil cylinder, and the piston rod of described oil cylinder is fixedlyed connected with described moving die plate.
Described connection rod set is four groups and is symmetrically distributed in the both sides of described oil cylinder, two groups of connection rod set of each side are along the horizontal plane symmetry at described central axis place, described connection rod set comprises first connecting rod, second connecting rod and third connecting rod, the rear end of described first connecting rod is coupling on described base, the front end of described first connecting rod and the rear end of described second connecting rod are coupling, the front end of described second connecting rod is coupling on described moving die plate, one end of described third connecting rod is coupling on described thrust bearing, the other end of described third connecting rod is coupling on described second connecting rod, when promoting moving die plate, the piston rod of oil cylinder moves forward when making moving die plate and fixed form be in locking states, the line of centres of described first connecting rod and described second connecting rod is on the same straight line, the angle of the horizontal plane at the line of centres of described first connecting rod and described second connecting rod and described central axis place greater than 0 ° smaller or equal to 10 °.
Described thrust bearing comprises the housing that is surrounded by four connection rib one, be wholely set guide holder on the angle of described housing, described guide holder is enclosed within on the described guide rod, have between at least one group of connection rib that is oppositely arranged in described four connection ribs and be connected with connecting rod, described connecting rod is by the center of described thrust bearing, and described oil cylinder is fixedly mounted on the described connecting rod.
Be connected with connecting rod between the connection rib that wherein a group is oppositely arranged in described four connection ribs, the fixed-site that is positioned at the thrust bearing center on the described connecting rod is equipped with an oil cylinder.
Be connected with connecting rod between the connection rib that wherein a group is oppositely arranged in described four connection ribs, be installed with two oil cylinders on the described connecting rod along described central axis symmetry.
In described four connection ribs between two groups of connection ribs that are oppositely arranged all one be connected with connecting rod, two connecting rod intersection are positioned at the center of described thrust bearing, the intersection of two connecting rods is installed with an oil cylinder.
Compared with prior art, advantage of the present invention is owing to the inside that oil cylinder is fixedly mounted on thrust bearing, has shortened the length of whole clamping mechanism and has made the structure of entire mechanism become compact, has dwindled overall volume; And when moving die plate and fixed form are in locking states; the angle of the horizontal plane at the line of centres of first connecting rod and second connecting rod and central axis place greater than 0 ° smaller or equal to 10 °; this structure has been improved the force-bearing situation of mould; the active force that clamping mechanism is acted on the mould more is tending towards mold center; mould is stressed more concentrated, has effectively improved the qualification rate of plastic products.
Description of drawings
Fig. 1 is the stereogram of the embodiment of the invention one;
Fig. 2 is the front view of Fig. 1 under locking states;
Fig. 3 is the front view of Fig. 1 under opening;
Fig. 4 is the stereogram of the thrust bearing of the embodiment of the invention one;
Fig. 5 is the structural representation of the thrust bearing of the embodiment of the invention two.
The specific embodiment
Embodiment describes in further detail the present invention below in conjunction with accompanying drawing.
Embodiment one: as shown in the figure; a kind of clamping mechanism of plastic-injection moulding machine; comprise and being arranged in order and it is centered close to base 1 on the same central axis 11; thrust bearing 2; moving die plate 3 and fixed form 4; be set with guide rod 5 on the base 1; thrust bearing 2 and moving die plate 3 are set on the guide rod 5; fixed form 4 is fixedly connected on the end of guide rod 5; thrust bearing 2 comprises the housing that is surrounded by four connection rib 21 one; be wholely set guide holder 22 on the angle of housing; guide holder 22 is enclosed within on the guide rod 5; wherein be connected with connecting rod 23 between one group of connection rib that is oppositely arranged 21 in four connection ribs 21; connecting rod 23 is by the center of thrust bearing 2; the fixed-site that is positioned at thrust bearing 2 centers on the connecting rod 23 is equipped with an oil cylinder 6; the piston rod of oil cylinder 6 is fixedlyed connected with moving die plate 3; be provided with four groups of connection rod set that are symmetrically distributed in oil cylinder 6 both sides between moving die plate 3 and the base 1; two groups of connection rod set of each side are along the horizontal plane symmetry at central axis 11 places; connection rod set comprises first connecting rod 7; second connecting rod 8 and third connecting rod 9; the rear end of first connecting rod 7 is coupling on base 1; the rear end of the front end of first connecting rod 7 and second connecting rod 8 is coupling; the front end of second connecting rod 8 is coupling on moving die plate 3; one end of third connecting rod 9 is coupling on the connection rib 21 of thrust bearing 2; the other end of third connecting rod 9 is coupling on second connecting rod 8; when promoting moving die plate 3, the piston rod of oil cylinder 6 moves forward when making moving die plate 3 and fixed form 4 be in locking states; first connecting rod 7 is on the same straight line with the line of centres of second connecting rod 8, and first connecting rod 7 becomes angle theta with the line of centres of second connecting rod 8 with the horizontal plane at central axis 11 places.
Embodiment two: as shown in the figure, other mechanism is with embodiment one, difference is in four connection ribs 21 of thrust bearing 2 between two groups of connection ribs that are oppositely arranged 21 that all one is connected with connecting rod 23, two connecting rod 23 intersection are positioned at the center of thrust bearing 2, and oil cylinder 6 is fixedly mounted on the intersection of two connecting rods 23.
In the foregoing description, angle theta can greater than 0 ° smaller or equal to 10 ° scope in according to actual design needs value; When wherein being connected with connecting rod 23 between one group of connection rib that is oppositely arranged 21 in four connection ribs 21 of thrust bearing 2, can on connecting rod 23, fixedly mount two oil cylinders 6 along central axis 11 symmetries, also can on connecting rod 23, fixedly mount three oil cylinders 6, one of them oil cylinder 6 is positioned at the position that is positioned at thrust bearing 2 centers on the connecting rod 23, and all the other two oil cylinders 6 are along central axis 11 symmetries.
Claims (6)
1. the clamping mechanism of a plastic-injection moulding machine; comprise and being arranged in order and it is centered close to base on the same central axis; thrust bearing; moving die plate and fixed form; be set with guide rod on the described base; described thrust bearing and moving die plate are set on the described guide rod; described fixed form is fixedly connected on the end of described guide rod; be provided with connection rod set between described moving die plate and the described base; the internal fixation that it is characterized in that described thrust bearing is provided with at least one oil cylinder, and the piston rod of described oil cylinder is fixedlyed connected with described moving die plate.
2. the clamping mechanism of a kind of plastic-injection moulding machine as claimed in claim 1; it is characterized in that described connection rod set is four groups and is symmetrically distributed in the both sides of described oil cylinder; two groups of connection rod set of each side are along the horizontal plane symmetry at described central axis place; described connection rod set comprises first connecting rod; second connecting rod and third connecting rod; the rear end of described first connecting rod is coupling on described base; the front end of described first connecting rod and the rear end of described second connecting rod are coupling; the front end of described second connecting rod is coupling on described moving die plate; one end of described third connecting rod is coupling on described thrust bearing; the other end of described third connecting rod is coupling on described second connecting rod; when promoting moving die plate, the piston rod of oil cylinder moves forward when making moving die plate and fixed form be in locking states; the line of centres of described first connecting rod and described second connecting rod is on the same straight line, the angle of the horizontal plane at the line of centres of described first connecting rod and described second connecting rod and described central axis place greater than 0 ° smaller or equal to 10 °.
3. the clamping mechanism of a kind of plastic-injection moulding machine as claimed in claim 1; it is characterized in that described thrust bearing comprises the housing that is surrounded by four connection rib one; be wholely set guide holder on the angle of described housing; described guide holder is enclosed within on the described guide rod; have between at least one group of connection rib that is oppositely arranged in described four connection ribs and be connected with connecting rod; described connecting rod is by the center of described thrust bearing, and described oil cylinder is fixedly mounted on the described connecting rod.
4. the clamping mechanism of a kind of plastic-injection moulding machine as claimed in claim 3; it is characterized in that being connected with connecting rod between wherein one group is oppositely arranged in described four connection ribs the connection rib, the fixed-site that is positioned at the thrust bearing center on the described connecting rod is equipped with an oil cylinder.
5. the clamping mechanism of a kind of plastic-injection moulding machine as claimed in claim 3; it is characterized in that being connected with connecting rod between wherein one group is oppositely arranged in described four connection ribs the connection rib, be installed with two oil cylinders on the described connecting rod along described central axis symmetry.
6. the clamping mechanism of a kind of plastic-injection moulding machine as claimed in claim 3; it is characterized in that in described four connection ribs between two groups of connection ribs that are oppositely arranged that all one is connected with connecting rod; two connecting rod intersection are positioned at the center of described thrust bearing, and the intersection of two connecting rods is installed with an oil cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110250342.5A CN102294804B (en) | 2011-08-29 | 2011-08-29 | Mold locking mechanism of plastic injection molding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110250342.5A CN102294804B (en) | 2011-08-29 | 2011-08-29 | Mold locking mechanism of plastic injection molding machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102294804A true CN102294804A (en) | 2011-12-28 |
| CN102294804B CN102294804B (en) | 2014-01-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110250342.5A Active CN102294804B (en) | 2011-08-29 | 2011-08-29 | Mold locking mechanism of plastic injection molding machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102294804B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106915048A (en) * | 2017-03-15 | 2017-07-04 | 周飞 | Link-type Clamping Device of Injection Moulding Machine |
| CN109822845A (en) * | 2019-03-13 | 2019-05-31 | 宁波双马机械工业有限公司 | A kind of clamping mechanism of injection molding machine |
| CN117400500A (en) * | 2023-11-16 | 2024-01-16 | 广东优铸精密机械股份有限公司 | Injection control system of double-color-cleaning injection molding machine |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5252286A (en) * | 1991-04-22 | 1993-10-12 | B.M.B. S.P.A. | Closing unit for a double toggle molding apparatus and method |
| CN2454116Y (en) * | 2000-12-26 | 2001-10-17 | 宁波永泰塑料机械有限公司 | Small-angle rear-bar mould-matching mechanism of plastic-injection machine |
| CN2471519Y (en) * | 2001-03-22 | 2002-01-16 | 宁波海天股份有限公司 | Fixed formwork for plastic injector |
| CN2754865Y (en) * | 2004-12-16 | 2006-02-01 | 仇信华 | Internal mould closing cylinder linking-bar mechanism of plastic injection machine |
| CN101148084A (en) * | 2006-09-18 | 2008-03-26 | 恩格尔奥地利有限公司 | Closing unit of an injection molding machine |
| CN202264369U (en) * | 2011-08-29 | 2012-06-06 | 宁波双马机械工业有限公司 | Mold locking mechanism of plastic injection molding machine |
-
2011
- 2011-08-29 CN CN201110250342.5A patent/CN102294804B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5252286A (en) * | 1991-04-22 | 1993-10-12 | B.M.B. S.P.A. | Closing unit for a double toggle molding apparatus and method |
| CN2454116Y (en) * | 2000-12-26 | 2001-10-17 | 宁波永泰塑料机械有限公司 | Small-angle rear-bar mould-matching mechanism of plastic-injection machine |
| CN2471519Y (en) * | 2001-03-22 | 2002-01-16 | 宁波海天股份有限公司 | Fixed formwork for plastic injector |
| CN2754865Y (en) * | 2004-12-16 | 2006-02-01 | 仇信华 | Internal mould closing cylinder linking-bar mechanism of plastic injection machine |
| CN101148084A (en) * | 2006-09-18 | 2008-03-26 | 恩格尔奥地利有限公司 | Closing unit of an injection molding machine |
| CN202264369U (en) * | 2011-08-29 | 2012-06-06 | 宁波双马机械工业有限公司 | Mold locking mechanism of plastic injection molding machine |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106915048A (en) * | 2017-03-15 | 2017-07-04 | 周飞 | Link-type Clamping Device of Injection Moulding Machine |
| CN109822845A (en) * | 2019-03-13 | 2019-05-31 | 宁波双马机械工业有限公司 | A kind of clamping mechanism of injection molding machine |
| CN117400500A (en) * | 2023-11-16 | 2024-01-16 | 广东优铸精密机械股份有限公司 | Injection control system of double-color-cleaning injection molding machine |
| CN117400500B (en) * | 2023-11-16 | 2024-05-17 | 广东优铸精密机械股份有限公司 | Injection control system of double-color-cleaning injection molding machine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102294804B (en) | 2014-01-22 |
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Address after: 315821 Jiangnan export processing trade zone, Beilun District, Ningbo City, Zhejiang Province Patentee after: Bole Intelligent Equipment Co.,Ltd. Address before: 315821 Jiangnan export processing trade zone, Beilun District, Ningbo City, Zhejiang Province Patentee before: NINGBO SHUANGMA MACHINERY INDUSTRY Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder | ||
| CP03 | Change of name, title or address |
Address after: 337000 Qingyuan Industrial Park, Anyuan Industrial Park, Anyuan District, Pingxiang City, Jiangxi Province Patentee after: Bole Intelligent Equipment Co.,Ltd. Address before: 315821 Jiangnan export processing trade zone, Beilun District, Ningbo City, Zhejiang Province Patentee before: Bole Intelligent Equipment Co.,Ltd. |
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| CP03 | Change of name, title or address |